Much as they may have been exhorted by their mothers to eat everything on their plates, many Americans find that when they dine in restaurants they just cannot do itthe portions are simply too big for the diet-conscious. Anywhere up to 65% of the food ladled onto plates in many restaurants is thrown away uneaten. Now a few restaurants are moving away from the groaning-board tradition by offering a choice of regular portions at regular prices or smaller portions at lower prices.
For the past year or so, the Camelback Inn in Scottsdale, Ariz., owned by Marriott Corp., has presented such...